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moved NTCP to separate thread

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pull/147/head
orignal 10 years ago
parent e3e0702813
commit 6683a9cf76
5 changed files with 261 additions and 156 deletions
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32
HTTPServer.cpp
Unescape Escape View File

@ -709,22 +709,26 @@ namespace util
void HTTPConnection::ShowTransports (std::stringstream& s)
{
s << "NTCP<br>";
for (auto it: i2p::transport::transports.GetNTCPSessions ())
{
if (it.second && it.second->IsEstablished ())
auto ntcpServer = i2p::transport::transports.GetNTCPServer ();
if (ntcpServer)
{
s << "NTCP<br>";
for (auto it: ntcpServer->GetNTCPSessions ())
{
// incoming connection doesn't have remote RI
auto outgoing = it.second->GetRemoteRouter ();
if (outgoing) s << "-->";
s << it.second->GetRemoteIdentity ().GetIdentHash ().ToBase64 ().substr (0, 4) << ": "
<< it.second->GetSocket ().remote_endpoint().address ().to_string ();
if (!outgoing) s << "-->";
s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]";
s << "<br>";
if (it.second && it.second->IsEstablished ())
{
// incoming connection doesn't have remote RI
auto outgoing = it.second->GetRemoteRouter ();
if (outgoing) s << "-->";
s << it.second->GetRemoteIdentity ().GetIdentHash ().ToBase64 ().substr (0, 4) << ": "
<< it.second->GetSocket ().remote_endpoint().address ().to_string ();
if (!outgoing) s << "-->";
s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]";
s << "<br>";
}
s << std::endl;
}
s << std::endl;
}
}
auto ssuServer = i2p::transport::transports.GetSSUServer ();
if (ssuServer)
{

182
NTCPSession.cpp
Unescape Escape View File

@ -18,9 +18,9 @@ namespace i2p
{
namespace transport
{
NTCPSession::NTCPSession (boost::asio::io_service& service, std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter):
TransportSession (in_RemoteRouter), m_Socket (service),
m_TerminationTimer (service), m_IsEstablished (false), m_ReceiveBufferOffset (0),
NTCPSession::NTCPSession (NTCPServer& server, std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter):
TransportSession (in_RemoteRouter), m_Server (server), m_Socket (m_Server.GetService ()),
m_TerminationTimer (m_Server.GetService ()), m_IsEstablished (false), m_ReceiveBufferOffset (0),
m_NextMessage (nullptr), m_NumSentBytes (0), m_NumReceivedBytes (0)
{
m_DHKeysPair = transports.GetNextDHKeysPair ();
@ -89,7 +89,7 @@ namespace transport
if (numDelayed > 0)
LogPrint (eLogWarning, "NTCP session ", numDelayed, " not sent");
// TODO: notify tunnels
transports.RemoveNTCPSession (shared_from_this ());
m_Server.RemoveNTCPSession (shared_from_this ());
LogPrint ("NTCP session terminated");
}
@ -427,7 +427,7 @@ namespace transport
{
LogPrint (eLogDebug, "Phase 4 sent: ", bytes_transferred);
LogPrint ("NTCP server session connected");
transports.AddNTCPSession (shared_from_this ());
m_Server.AddNTCPSession (shared_from_this ());
Connected ();
m_ReceiveBufferOffset = 0;
@ -654,5 +654,177 @@ namespace transport
m_Socket.close ();// invoke Terminate () from HandleReceive
}
}
//-----------------------------------------
NTCPServer::NTCPServer (int port):
m_IsRunning (false), m_Thread (nullptr), m_Work (m_Service),
m_NTCPAcceptor (nullptr), m_NTCPV6Acceptor (nullptr)
{
}
NTCPServer::~NTCPServer ()
{
Stop ();
}
void NTCPServer::Start ()
{
if (!m_IsRunning)
{
m_IsRunning = true;
m_Thread = new std::thread (std::bind (&NTCPServer::Run, this));
// create acceptors
auto addresses = context.GetRouterInfo ().GetAddresses ();
for (auto& address : addresses)
{
if (address.transportStyle == i2p::data::RouterInfo::eTransportNTCP && address.host.is_v4 ())
{
m_NTCPAcceptor = new boost::asio::ip::tcp::acceptor (m_Service,
boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), address.port));
LogPrint ("Start listening TCP port ", address.port);
auto conn = std::make_shared<NTCPSession>(*this);
m_NTCPAcceptor->async_accept(conn->GetSocket (), std::bind (&NTCPServer::HandleAccept, this,
conn, std::placeholders::_1));
if (context.SupportsV6 ())
{
m_NTCPV6Acceptor = new boost::asio::ip::tcp::acceptor (m_Service);
m_NTCPV6Acceptor->open (boost::asio::ip::tcp::v6());
m_NTCPV6Acceptor->set_option (boost::asio::ip::v6_only (true));
m_NTCPV6Acceptor->bind (boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v6(), address.port));
m_NTCPV6Acceptor->listen ();
LogPrint ("Start listening V6 TCP port ", address.port);
auto conn = std::make_shared<NTCPSession> (*this);
m_NTCPV6Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCPServer::HandleAcceptV6,
this, conn, std::placeholders::_1));
}
}
}
}
}
void NTCPServer::Stop ()
{
m_NTCPSessions.clear ();
if (m_IsRunning)
{
m_IsRunning = false;
delete m_NTCPAcceptor;
m_NTCPAcceptor = nullptr;
delete m_NTCPV6Acceptor;
m_NTCPV6Acceptor = nullptr;
m_Service.stop ();
if (m_Thread)
{
m_Thread->join ();
delete m_Thread;
m_Thread = nullptr;
}
}
}
void NTCPServer::Run ()
{
while (m_IsRunning)
{
try
{
m_Service.run ();
}
catch (std::exception& ex)
{
LogPrint ("NTCP server: ", ex.what ());
}
}
}
void NTCPServer::AddNTCPSession (std::shared_ptr<NTCPSession> session)
{
if (session)
m_NTCPSessions[session->GetRemoteIdentity ().GetIdentHash ()] = session;
}
void NTCPServer::RemoveNTCPSession (std::shared_ptr<NTCPSession> session)
{
if (session)
m_NTCPSessions.erase (session->GetRemoteIdentity ().GetIdentHash ());
}
std::shared_ptr<NTCPSession> NTCPServer::FindNTCPSession (const i2p::data::IdentHash& ident)
{
auto it = m_NTCPSessions.find (ident);
if (it != m_NTCPSessions.end ())
return it->second;
return nullptr;
}
void NTCPServer::HandleAccept (std::shared_ptr<NTCPSession> conn, const boost::system::error_code& error)
{
if (!error)
{
LogPrint ("Connected from ", conn->GetSocket ().remote_endpoint().address ().to_string ());
conn->ServerLogin ();
}
if (error != boost::asio::error::operation_aborted)
{
conn = std::make_shared<NTCPSession> (*this);
m_NTCPAcceptor->async_accept(conn->GetSocket (), std::bind (&NTCPServer::HandleAccept, this,
conn, std::placeholders::_1));
}
}
void NTCPServer::HandleAcceptV6 (std::shared_ptr<NTCPSession> conn, const boost::system::error_code& error)
{
if (!error)
{
LogPrint ("Connected from ", conn->GetSocket ().remote_endpoint().address ().to_string ());
conn->ServerLogin ();
}
if (error != boost::asio::error::operation_aborted)
{
conn = std::make_shared<NTCPSession> (*this);
m_NTCPV6Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCPServer::HandleAcceptV6, this,
conn, std::placeholders::_1));
}
}
void NTCPServer::Connect (const boost::asio::ip::address& address, int port, std::shared_ptr<NTCPSession> conn)
{
LogPrint ("Connecting to ", address ,":", port);
m_Service.post([conn, this]()
{
this->AddNTCPSession (conn);
});
conn->GetSocket ().async_connect (boost::asio::ip::tcp::endpoint (address, port),
std::bind (&NTCPServer::HandleConnect, this, std::placeholders::_1, conn));
}
void NTCPServer::HandleConnect (const boost::system::error_code& ecode, std::shared_ptr<NTCPSession> conn)
{
if (ecode)
{
LogPrint ("Connect error: ", ecode.message ());
if (ecode != boost::asio::error::operation_aborted)
{
i2p::data::netdb.SetUnreachable (conn->GetRemoteIdentity ().GetIdentHash (), true);
conn->Terminate ();
}
}
else
{
LogPrint ("Connected");
if (conn->GetSocket ().local_endpoint ().protocol () == boost::asio::ip::tcp::v6()) // ipv6
context.UpdateNTCPV6Address (conn->GetSocket ().local_endpoint ().address ());
conn->ClientLogin ();
}
}
}
}

48
NTCPSession.h
Unescape Escape View File

@ -3,7 +3,10 @@
#include <inttypes.h>
#include <list>
#include <map>
#include <memory>
#include <thread>
#include <boost/asio.hpp>
#include <cryptopp/modes.h>
#include <cryptopp/aes.h>
#include <cryptopp/adler32.h>
@ -43,11 +46,12 @@ namespace transport
const int NTCP_TERMINATION_TIMEOUT = 120; // 2 minutes
const size_t NTCP_DEFAULT_PHASE3_SIZE = 2/*size*/ + i2p::data::DEFAULT_IDENTITY_SIZE/*387*/ + 4/*ts*/ + 15/*padding*/ + 40/*signature*/; // 448
class NTCPServer;
class NTCPSession: public TransportSession, public std::enable_shared_from_this<NTCPSession>
{
public:
NTCPSession (boost::asio::io_service& service, std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter = nullptr);
NTCPSession (NTCPServer& server, std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter = nullptr);
~NTCPSession ();
void Terminate ();
@ -103,6 +107,7 @@ namespace transport
private:
NTCPServer& m_Server;
boost::asio::ip::tcp::socket m_Socket;
boost::asio::deadline_timer m_TerminationTimer;
bool m_IsEstablished;
@ -127,6 +132,47 @@ namespace transport
size_t m_NumSentBytes, m_NumReceivedBytes;
};
// TODO: move to NTCP.h/.cpp
class NTCPServer
{
public:
NTCPServer (int port);
~NTCPServer ();
void Start ();
void Stop ();
void AddNTCPSession (std::shared_ptr<NTCPSession> session);
void RemoveNTCPSession (std::shared_ptr<NTCPSession> session);
std::shared_ptr<NTCPSession> FindNTCPSession (const i2p::data::IdentHash& ident);
void Connect (const boost::asio::ip::address& address, int port, std::shared_ptr<NTCPSession> conn);
boost::asio::io_service& GetService () { return m_Service; };
private:
void Run ();
void HandleAccept (std::shared_ptr<NTCPSession> conn, const boost::system::error_code& error);
void HandleAcceptV6 (std::shared_ptr<NTCPSession> conn, const boost::system::error_code& error);
void HandleConnect (const boost::system::error_code& ecode, std::shared_ptr<NTCPSession> conn);
private:
bool m_IsRunning;
std::thread * m_Thread;
boost::asio::io_service m_Service;
boost::asio::io_service::work m_Work;
boost::asio::ip::tcp::acceptor * m_NTCPAcceptor, * m_NTCPV6Acceptor;
std::map<i2p::data::IdentHash, std::shared_ptr<NTCPSession> > m_NTCPSessions;
public:
// for HTTP/I2PControl
const decltype(m_NTCPSessions)& GetNTCPSessions () const { return m_NTCPSessions; };
};
}
}

139
Transports.cpp
Unescape Escape View File

@ -96,8 +96,9 @@ namespace transport
Transports transports;
Transports::Transports ():
m_Thread (nullptr), m_Work (m_Service), m_NTCPAcceptor (nullptr), m_NTCPV6Acceptor (nullptr),
m_SSUServer (nullptr), m_DHKeysPairSupplier (5) // 5 pre-generated keys
m_IsRunning (false), m_Thread (nullptr), m_Work (m_Service),
m_NTCPServer (nullptr), m_SSUServer (nullptr),
m_DHKeysPairSupplier (5) // 5 pre-generated keys
{
}
@ -115,31 +116,13 @@ namespace transport
auto addresses = context.GetRouterInfo ().GetAddresses ();
for (auto& address : addresses)
{
if (address.transportStyle == RouterInfo::eTransportNTCP && address.host.is_v4 ())
if (!m_NTCPServer)
{
m_NTCPAcceptor = new boost::asio::ip::tcp::acceptor (m_Service,
boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), address.port));
LogPrint ("Start listening TCP port ", address.port);
auto conn = std::make_shared<NTCPSession>(m_Service);
m_NTCPAcceptor->async_accept(conn->GetSocket (), boost::bind (&Transports::HandleAccept, this,
conn, boost::asio::placeholders::error));
if (context.SupportsV6 ())
{
m_NTCPV6Acceptor = new boost::asio::ip::tcp::acceptor (m_Service);
m_NTCPV6Acceptor->open (boost::asio::ip::tcp::v6());
m_NTCPV6Acceptor->set_option (boost::asio::ip::v6_only (true));
m_NTCPV6Acceptor->bind (boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v6(), address.port));
m_NTCPV6Acceptor->listen ();
LogPrint ("Start listening V6 TCP port ", address.port);
auto conn = std::make_shared<NTCPSession> (m_Service);
m_NTCPV6Acceptor->async_accept(conn->GetSocket (), boost::bind (&Transports::HandleAcceptV6,
this, conn, boost::asio::placeholders::error));
}
m_NTCPServer = new NTCPServer (address.port);
m_NTCPServer->Start ();
}
else if (address.transportStyle == RouterInfo::eTransportSSU && address.host.is_v4 ())
if (address.transportStyle == RouterInfo::eTransportSSU && address.host.is_v4 ())
{
if (!m_SSUServer)
{
@ -162,12 +145,12 @@ namespace transport
delete m_SSUServer;
m_SSUServer = nullptr;
}
m_NTCPSessions.clear ();
delete m_NTCPAcceptor;
m_NTCPAcceptor = nullptr;
delete m_NTCPV6Acceptor;
m_NTCPV6Acceptor = nullptr;
if (m_NTCPServer)
{
m_NTCPServer->Stop ();
delete m_NTCPServer;
m_NTCPServer = nullptr;
}
m_DHKeysPairSupplier.Stop ();
m_IsRunning = false;
@ -195,93 +178,6 @@ namespace transport
}
}
void Transports::AddNTCPSession (std::shared_ptr<NTCPSession> session)
{
if (session)
m_NTCPSessions[session->GetRemoteIdentity ().GetIdentHash ()] = session;
}
void Transports::RemoveNTCPSession (std::shared_ptr<NTCPSession> session)
{
if (session)
m_NTCPSessions.erase (session->GetRemoteIdentity ().GetIdentHash ());
}
void Transports::HandleAccept (std::shared_ptr<NTCPSession> conn, const boost::system::error_code& error)
{
if (!error)
{
LogPrint ("Connected from ", conn->GetSocket ().remote_endpoint().address ().to_string ());
conn->ServerLogin ();
}
if (error != boost::asio::error::operation_aborted)
{
conn = std::make_shared<NTCPSession> (m_Service);
m_NTCPAcceptor->async_accept(conn->GetSocket (), boost::bind (&Transports::HandleAccept, this,
conn, boost::asio::placeholders::error));
}
}
void Transports::HandleAcceptV6 (std::shared_ptr<NTCPSession> conn, const boost::system::error_code& error)
{
if (!error)
{
LogPrint ("Connected from ", conn->GetSocket ().remote_endpoint().address ().to_string ());
conn->ServerLogin ();
}
if (error != boost::asio::error::operation_aborted)
{
conn = std::make_shared<NTCPSession> (m_Service);
m_NTCPV6Acceptor->async_accept(conn->GetSocket (), boost::bind (&Transports::HandleAcceptV6, this,
conn, boost::asio::placeholders::error));
}
}
void Transports::Connect (const boost::asio::ip::address& address, int port, std::shared_ptr<NTCPSession> conn)
{
LogPrint ("Connecting to ", address ,":", port);
conn->GetSocket ().async_connect (boost::asio::ip::tcp::endpoint (address, port),
boost::bind (&Transports::HandleConnect, this, boost::asio::placeholders::error, conn));
}
void Transports::HandleConnect (const boost::system::error_code& ecode, std::shared_ptr<NTCPSession> conn)
{
if (ecode)
{
LogPrint ("Connect error: ", ecode.message ());
if (ecode != boost::asio::error::operation_aborted)
{
i2p::data::netdb.SetUnreachable (conn->GetRemoteIdentity ().GetIdentHash (), true);
conn->Terminate ();
}
}
else
{
LogPrint ("Connected");
if (conn->GetSocket ().local_endpoint ().protocol () == boost::asio::ip::tcp::v6()) // ipv6
context.UpdateNTCPV6Address (conn->GetSocket ().local_endpoint ().address ());
conn->ClientLogin ();
}
}
std::shared_ptr<NTCPSession> Transports::GetNextNTCPSession ()
{
for (auto session: m_NTCPSessions)
if (session.second->IsEstablished ())
return session.second;
return 0;
}
std::shared_ptr<NTCPSession> Transports::FindNTCPSession (const i2p::data::IdentHash& ident)
{
auto it = m_NTCPSessions.find (ident);
if (it != m_NTCPSessions.end ())
return it->second;
return 0;
}
void Transports::SendMessage (const i2p::data::IdentHash& ident, i2p::I2NPMessage * msg)
{
@ -296,7 +192,7 @@ namespace transport
i2p::HandleI2NPMessage (msg);
return;
}
std::shared_ptr<TransportSession> session = FindNTCPSession (ident);
std::shared_ptr<TransportSession> session = m_NTCPServer->FindNTCPSession (ident);
if (!session)
{
auto r = netdb.FindRouter (ident);
@ -311,10 +207,9 @@ namespace transport
auto address = r->GetNTCPAddress (!context.SupportsV6 ());
if (address && !r->UsesIntroducer () && !r->IsUnreachable () && msg->GetLength () < NTCP_MAX_MESSAGE_SIZE)
{
auto s = std::make_shared<NTCPSession> (m_Service, r);
AddNTCPSession (s);
auto s = std::make_shared<NTCPSession> (*m_NTCPServer, r);
session = s;
Connect (address->host, address->port, s);
m_NTCPServer->Connect (address->host, address->port, s);
}
else
{

16
Transports.h
Unescape Escape View File

@ -64,27 +64,16 @@ namespace transport
i2p::transport::DHKeysPair * GetNextDHKeysPair ();
void ReuseDHKeysPair (DHKeysPair * pair);
void AddNTCPSession (std::shared_ptr<NTCPSession> session);
void RemoveNTCPSession (std::shared_ptr<NTCPSession> session);
std::shared_ptr<NTCPSession> GetNextNTCPSession ();
std::shared_ptr<NTCPSession> FindNTCPSession (const i2p::data::IdentHash& ident);
void SendMessage (const i2p::data::IdentHash& ident, i2p::I2NPMessage * msg);
void CloseSession (std::shared_ptr<const i2p::data::RouterInfo> router);
private:
void Run ();
void HandleAccept (std::shared_ptr<NTCPSession> conn, const boost::system::error_code& error);
void HandleAcceptV6 (std::shared_ptr<NTCPSession> conn, const boost::system::error_code& error);
void HandleResendTimer (const boost::system::error_code& ecode, boost::asio::deadline_timer * timer,
const i2p::data::IdentHash& ident, i2p::I2NPMessage * msg);
void PostMessage (const i2p::data::IdentHash& ident, i2p::I2NPMessage * msg);
void PostCloseSession (std::shared_ptr<const i2p::data::RouterInfo> router);
void Connect (const boost::asio::ip::address& address, int port, std::shared_ptr<NTCPSession> conn);
void HandleConnect (const boost::system::error_code& ecode, std::shared_ptr<NTCPSession> conn);
void DetectExternalIP ();
@ -94,9 +83,8 @@ namespace transport
std::thread * m_Thread;
boost::asio::io_service m_Service;
boost::asio::io_service::work m_Work;
boost::asio::ip::tcp::acceptor * m_NTCPAcceptor, * m_NTCPV6Acceptor;
std::map<i2p::data::IdentHash, std::shared_ptr<NTCPSession> > m_NTCPSessions;
NTCPServer * m_NTCPServer;
SSUServer * m_SSUServer;
DHKeysPairSupplier m_DHKeysPairSupplier;
@ -104,7 +92,7 @@ namespace transport
public:
// for HTTP only
const decltype(m_NTCPSessions)& GetNTCPSessions () const { return m_NTCPSessions; };
const NTCPServer * GetNTCPServer () const { return m_NTCPServer; };
const SSUServer * GetSSUServer () const { return m_SSUServer; };
};

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